职教组卷基于海量职教高考试题库建立的在线组卷及学习系统

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当前：英语

题型：英语知识运用题类：其他难易度：较难

测

There is always some obstacle in the way, something ______ before we realize the real goal of education.

A. to be got through B. got through C. getting through D. having been got through

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